Pulmonary embolism (PE) is a blockage of the main artery of the lung or one of its branches by a substance that has travelled from elsewhere in the body through the bloodstream (embolism). Usually this is due to embolism of a thrombus (blood clot) from the deep veins in the legs, a process termed venous thromboembolism. A small proportion is due to the embolization of air, fat or amniotic fluid.
No. 00; Updated October 2015. The child and adolescent psychiatrist is a physician who specializes in the diagnosis and the treatment of disorders of thinking, feeling and/or behavior affecting children, adolescents, and their families.
Adolescent psychology is an area in which clinical or counseling psychologists can choose to specialize. Typically, adolescent psychologists deliver psychological services to children between the ages of 12 and 18, however, this is not always the case.